When a big girl takes off her clothes and it looks like she got no panties on, but then she straighten her torso and you see the thong appear through her love folds. That's porkfloss baby
"oooh damn baby you came through with no panties on?"
"Nah I got a thong, *lifts belly* see?"
When you old enough to have silverhair but take care of your body that it is like a 20 year old you have the right and should proudly floss off the hours of blood sweat and tears.